In a newspaper, it was reported that the number of yearly robberies in Springfield in 2011 was 138, and then went up by 50% in 2012. How many robberies were there in Springfield in 2012?

207 robberies

Step-by-step explanation:

To find 50% of a number, we will simply multiply that number by 50%. To do so, we first convert 50% to a decimal.

When converting a percent to decimal, simply add a decimal point to the end of the number, then move it 2 places to the left.

50.  →  .50

Now we multiply:

138 x .50 = 69

So we know that 50% of 138 = 69

Now we just add that number to our original number in order to find what it would be with a 50% increase

138+ 69 = 207

So there were 207 robberies in 2012

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet